Induced suction for vacuum-cleaners.



J. & W. BIRRELL. INDUCED SUCTION FOR VACUUM CLEANERS. APPLIOATION FILED MAY 8, 1911'.

1,023,359.- Pateritd Apr; 16, 1912.

' WITNE88E8:

i 7007807 .49)??? 4 M/mm JW'nV/ a If BY I Mama 5 INVENTORS.

UNITED STATES PATENT OFFICE JAMES BIRRELL AND WILLIAM BIRRELL, E s'EnTTLE, wAsiI NGTo-N, AssIeNoEs, BY MESNE AssIenMENTs ro WATER VACUUM CLEANER 00. nc.

INDUCED SUCTION FOR VACUUM-CLEANERS.

Specification of Letters Patent.

Patented Apr. 16, 1912 Application filed May 8, 1911. .Serial No. 625,805.

To all echom'it may concern: 4

Be it known that we, JAMES BIRRELL and WILLIAM BIRRELL, citizens of the United States, residing at Seattle, in the county of. King and State of Washington, have invented certain new and useful Improvements in Induced Suction ,for Vacuum- Cleaners, of'which the following is a specification.

This invention relates to vacuum cleaning apparatus and, more particularly, to devices a dust collecting nozzle through a discharge .plpe. I I

The object of the present invention 1s the provision of a device'associated with the .dust discharge pipe and arranged to be detachably' connected to a faucet of a house water-system a'fiording water pressure sufficient to induce a flow of air to create the requisite suction. I

A further object is the adaptation of the device so that the dust-laden air when drawn into a suitable chamber will subject,

the dust to the water for saturation thereby causing the produced heavy matter to free itself from the air, so that the latter finally escapes in a practically purified state.

The invention is illustrated in the accompan ing drawing which is a vertical sect-ion of t e same applied to a water-faucet.

The reference numeral. 1 represents awater-faucet provided with a threaded'bib 2, as ordinarlly. 3 is an internally threaded socket which is screwed upon said bib. Extending downwardly from such socketis a water discharge nozzle 4 which projects into" a suction-chamber'5. Thi's'chamber is made of a substantially conoidal shape and has at its bottom a discharge opening 6 extending through a nozzle 7,Wl1iCh, iI1 turn, projects" downwardly into what wed'esignate as the mixing-chamber 8. This chamber is i also of a conoidal shape and has a'dischargc 'o'pening 9 at the bottom through a tubular extension 10. The axes of'the aforesaid chambers, nozzles and the 'extension' 1Q' are in vertical alinement with the axis of the lfaw.

cet bib.

violence. chamber the purified air returns to the ferred tosuct-ion-chamber 5 and is disposed An air inlet 11 is provided for the rewith its axis at or about the elevation of the bottom of the water-nozzle 4. Said air in- .let extends through a'nipple 12 provided in, the wall structure of the casing for the various chambers. The nipple 12 is screw threaded to receive the coupling. 13 for. a flexible pipe 14 which is connected with a dust collecting funnel which may be of ordinary or suitable design.

Thevoperation of theinventionisas follows: When the water-faucet is openedga.

stream of water is discharged at a high'---.ve-

locity through water-nozzle 4 to create a- .partial vacuum in the suction-chamber 5 thereby inducing a flow of dust-laden air.

into the suction-chamber and which is ejected with the water, into the mixing chamber 8 wherein the mixing of'the dust particles and water is completed and the air liberated fromthe dust. In the mixing chamber the various fluids effervesce with considerable- In discharging from the mixing room, while the combined dust and water is discharged to a sink or hopper whence it escapes through a drain pipe to a sewer.

What we claim, is In a devi'cezof the class described, a cas ing having anair inlet at one side and-a water inlet at the top terminating'in a nozzle depending into the chamber of the easing, the casing at its lower end-terminat- 1ng'1n a discharge nozzle, and asecond-pasing integral at its upper end with the firstmentioned casing and terminating at its lower end in a discharge nozzle, the nozzle depending from the first-mentioned casing extending into the chamber of the secondmentioned casing, all of said nozzles being in direct vertical alinement with the axis of the chambers, and the side inlet of the,firsthflopies of this patent may be qbtal'ned to Washington, I). 0.

r five cents each, by addressing the f Commissioner of Patontl, 

